Salü miteinander

Das "ungewollte Zünden" einige Tage vor dem Start ist ja wohl nur bei einer Feststoffrakete möglich.
Weiss jemand, ob nur die Booster oder auch die Zentralstufe Feststofftriebwerke haben?
Gibt es auch sonst jemanden, der genauere Daten zur Rakete hat?

Danke und Gruss

Andi

Die VLS- Rakete ?
(Kann sein, dass ich mich volle Motte blamiere, aber war/ist die nicht eine von den Russen ?)

Hab`mich eben noch kurz klug gemacht... die ist ja eigentlich auch als Missile gedacht, um eine 3600 kg nukleare "Nutzlast" zu transportieren.

Außerdem:
Warum startet man eine Rakete, die bei den zuvorigen beiden Starts schon versagt hat ?

@ Andi:

Zitat:

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Weiss jemand, ob nur die Booster oder auch die Zentralstufe Feststofftriebwerke haben?

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"The VLS is a four-stage rocket comprised of a core and four strap-on motors.
The first, or booster stage, has four solid fuel motors strapped to the center second-stage core motor.
Much of the rocket motor technology used on the VLS is derived from the Sonda-3 and Sonda-4 sounding rockets."

(Quelle: http://www.spaceandtech.com/spacedata/elvs/vls_sum.shtml)

Viele Grüße,
Marxi

Zitat:

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Original geschrieben von Marxi
Warum startet man eine Rakete, die bei den zuvorigen beiden Starts schon versagt hat?

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Vielleicht, weil man hofft, dass es beim 3. Mal endlich klappt?!? (siehe A4...)

Aller guten Dinge sind 3. War wohl hier nicht der Fall...

Aber: keine Regel ohne Ausnahme...

Zitat:

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Ein Grund warum in der ehmaligen UDSSR so viele Top-Leute in Mathe & Physik herausgekommen sind, war die allgemeine Schulpflicht.

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Die haben wir auch. Immer mehr Schüler verlassen allerdings diese Schule direkt in Richtung Arbeitslosigkeit. Allgemeine Schulpflicht ist sicher gut, reicht aber nicht. Schule erzeugt keine Arbeitsplätze (von den Lehrern etc. mal abgesehen), sondern macht nur fit dafür. Und sie ist ein Mittel des Verdrängungswettbewerbes zwischen den Arbeitssuchenden. Der besser ausgebildete verdrängt den schlechter ausgebildeten Arbeitnehmer, ohne daß dabei ein neuer Arbeitsplatz dabei entstehen müßte.

Arbeitsplätze entstehen durch Investitionen. Daran mangelt es aus vielfältigen Gründen. Aber ein vielsagender Hinweis ist, daß der größte Einzelposten des Bundeshaushaltes der Rentenzuschuß ist, mit 73 Milliarden Euro. Daran gemessen sind die für den Transrapid in Bayern noch fehlenden 100 Millionen nur der 1/730 Teil. Aber wetten, daß der Transrapid nie gebaut wird?

Hier mal einige Infos zur Rakete und zum Unfall:



Die VLS-1





Foto der brasilianischen Luftwaffe vom Unglücksort





Weiters Foto der brasilianischen Luftwaffe vom Unglücksort




Brazilian Rocket Explodes On Pad: Many Dead
Brasilia (AFP) Aug 23, 2003

Twenty-one people died in the explosion of a satellite launch rocket at Brazil's Alcantara space centre near here, aeronautics officials confirmed Saturday.
The prototype launch vehicle was being prepared for Monday's launch into orbit of two Brazilian observation satellites when it exploded Friday, incinerating the bodies of the victims and destroying the satellites and launch pad.
The space centre in Maranhao state was in total lockdown Saturday, with soldiers barring entry to all unauthorized people. Journalists were instructed to talk to official spokespeople, while grieving relatives complained of receiving minimal information.
The explosion was triggered when one of the rocket's four main thrust engines was unintentionally fired up. The 36-meter(118-foot) platform where the technicians were working disintegrated, officials said.
The remains of only two victims have so far been transferred from the wreckage of the rocket to the Forensic Medical Institute in Sao Luis, due to the extreme degree of incineration of the bodies in the blast.
Victims will be identified by their dental records.
Defence Ministry sources said no injuries were reported. Everyone who had been working on the platform died in the sudden blast.
Almost all the dead were technicians from Sao Joao dos Campos, a city in the state of Sao Paulo which houses a number of aerospace companies.
The technicians were putting in place the final details relating to Monday's scheduled rocket launch.
"The causes of the explosion are going to be the object of an ongoing investigation," an official with the Brazilian Space Agency (FAB) said Saturday.
Early Saturday, Defence Minister Jose Viegas, and Science and Technology Minister Sergio Amaral arrived at the base, along with head of the space agency Luiz Bevilaqcua, from Brasilia.
About 700 people were employed in all at the base on a jungle peninsula on Brazil's Atlantic coast.
Some 220 people were working on the launch project. A much smaller team was on the launch platform, erected at a cost of 12 million dollars, at the time of the blast.
The VLS rocket was the third prototype in the series to fail, a spokesman with the Brazilian Space Agency said. The 50-tonne, 19-meter (62-foot) rocket was designed to carry up to 40 tonnes of fuel and cost about 6.5 million dollars.
Rocket launches were aborted for technical reasons shortly after takeoff in 1997 and 1999.
With an orbital range of 1,000 kilometres (600 miles), the rocket was to give Brazil a long-sought entree into the world satellite launch market.
The Alcantara base has been the focus of much media attention following an agreement signed between the government of former president Fernando Henrique Cardoso (1994-2002) and the United States.
The United States was to make use of part of the Alcantara installations.
The accord still has to be ratified by Brazil's Congress, however, some members of the government of leftist President Luiz Inacio Lula da Silva, as well as local residents, oppose such a move.
A number of demonstrations have been held near the launch centre, with local people complaining that Brazilians will not have access to US facilities at the site.
The blast occurred just as the head of the Ukrainian National Space Agency was visiting to sign a bilateral cooperation agreement with Brazil.
The official, Valery Komaro, said the accident would not interfere with the agreement.